Printer&#39;s register-hook.



. F. H. BEROLD, JR. PRINTERS REGISTER BOOK 1 APPLICATION FILED SEPT.16, 1809 1 3,64 Patented July 2, 1912.

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FBEDEBICK I-I. BEROLD, 33., 6F CINCINNATI, OHIO.

PRINTERS REGISTER-HQQK.

Specification of Letters Patent. a lication filed September 16, race.

Patented July 2, 1912. Serial No. 518,063.

Zlh all whom it may concern: Be it known that .l', Fnrinninon H. Bnnonn, Jr., a citizen of the Unlted States, residing in Cincinnati, county of Hamilton, and;-

"Fig. 5 is a perspective view of the gear or State of Ohio, have invented certain new and useful .ln'iproveme-nts in. Printers Registerdlooks, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to register hook de-, vices for printers use in holding and registering' 'irinting plates, and it has for its 0bjcct the improvement of that class of printers hooks known as drop-in-hooks, which are adapted to be dropped in at any point in suitable grooves in the plate foundation, and in which the clamp holding jaw is adjustable after the hook has been dropped in place, while at the same time the clamp adjusting mean-s follows the jaw in its mowmient.

lieretoftu'e in structures of this kind, when a, rack element or a screw element has been provided for the grooves in the plate foundation, it has been found lil'lpl'tlCtlCtlblfl to provide a rack or screw element the full width of the groove, and. a result it has been found necessary to provide a pair of racks for each side of the groove, or a sin gle screw element for the middle portion of the groove, in either of which events the racks or screw are necessarily narrow, and

the corresponding pinions 01' worm gears have also provided only a narrow engaging surface. The strain on the entire hook in order to properly hold and maintain in exact registration the printers plate, is very great and as a result the teeth of the narrow pinions or of the screw element, are he quently broken or stripped 0th In order to hold the unitary hook structure in the groove, it has also been usual to provide a spring element to engage under some overhanging or undercut portion, of the groove to prevent vertical displacement. As the vertical strain is also very great, there is a tendency for any sprin element to give It is to overcome tliese two objections of such structures as have heretofore been in use that my invention is particularly di rected.

In the drawings Figure 1 is a central longitudinal section of my improved hook in, place in its groove in the p ate foundation. Fig. 2 is'a' transverse section of same. Fig.

3 is a plan view of the hook construction. Fig. 4 is a perspective view of the block member of the hook with the actuating mechanism and clamping jaw removed.

pinion element of the hook. Fig. 6 is a perspective view of the plate for retaining the hook against vertical displacement. Fig. 7 is a perspective view of my improved hook complete.

I 1 represents a. portion of the plate tounda' two, and 2, 2 the longitudinal grooves forn'led therein for the reception of the printers hook device. Each groove ispro vided near the upper surface of the platewith a groove or undercut portion 3, on each side running lengthwise of the groove. it is the block for holding the clamping jawnnd adjusting devices, provided With a vertical recess 5 extending nearly to the bottom of the block, and a transverse recess (3 extending through the block transversely with an opening 7 through the base of the lock. The vertical recess 5 also opens into the transverse recess 6. A short distance below the top surface of the block a circumferential groove 8 is provided, and a portion of the upper surface of the block cutaway at 9 so that the main body of the block is somewhat longer than the top surface.

Located in thebottom of the groove of the plate foundation, and extending the entire width of the groove, is a rack 10. This rack is a permanent part of the plate foundation, and with this rack the gear element; of the hook structureengages for the adjustment of the hook lengthwise in the groove. The rack may be either cast in the groove and an integral part of the plate foundation, or as illustrated the rack may he pushed in from either end of the groove and held by the side slots at the base of the groove. The width of the block 4 is substantially that of the grooves in the plate foundation, so as to give a sliding fit therein.

11 is a screw which is dropped into the vertical opening 5, and supported at its lower end in the socket 12 at the base of the vertical opening. And a square hole 13 is provided in the upper end of the screw to provide for connection for a key for rotating the screw.

14 is a clamping jaw preferably provided with a beveled front and rear surface 15, for engagement: with the printing plates. This adjustment jaw rests on top of the block .4 and ertends across the groove in the plate foundation, with its ends just above the top surface of the platefoundation. The clamping jaw is provided with a depending 'hub' or collar 16, andwith a central recess 27, and't-he lower e'ndof the, collar fits over the shank of the screw 11; To hold through the side" of the block so as to be brought into engagement with the screw 11.

In order to'hold thegear in place, and at the. same time permit itsrotation, I provide a-circumferential groove- 19, and secure the plate v20, the inner end of which engages in this groove by'inse'rtingsame in the slot 21, in-the block, the plate being held in place by the-transverse pins 22, 22.-

11 v In order to hold the hook structure in the groove in the 'plate foundation, I provide the holdingplate 23', the bifurcated arms 24, 24 of which engage in the side grooves 8, of the'block, and the undercut portions 3, 3, in the mainigroo e of the plate foundation. The outer ends of these bifurcations 24, 24

I .are provided with rounded heads 25', to enage around the edge of the groove 8 in the '35' rout-to hold the plate in place. There is sufiicient loosenessof fit of the side edges of the arms 24 in the. undercut portions 3, 3,

' ofthe-gro'oves to permit the heads 25 to en- *gage around the block 4 in the groove 8 and to permit the arms to spring out laterally when the plate 23 is withdrawn, or the side edges of the, arms r 24 may be cut away slightly toward their outer ends to permit this lateral movement thereof, in removing and pushing the plate into place. .Inorder that the holding plate may be removed to block so that the release the hook, I provide a groove 26 for the insertion of a toolto dislodge the plate from theblock.

The operation of my hook will be obvious from the foregoing description. The rack 10 being a permanent part of the plate foundation, the hooks are dropped into the grooves 'at any desired point withthe clamp- 55 ing jaws in close proximity to the plate to be secured, the holding plate 23 is then canted and passed into the undercut portion 3, 3 of the groove and pushed to place on the hook structure is securely held from vertical displacement. The screw 11 isthen rotated by the insertion of a proper tool through the opening 27, and the pinion 18 is caused to travel along the rack 10 bringing the clamping jaw into rigid engagement with the plate to be secured, the

a circumferential groove is cut" carried by the base a jaw by reason of its pivotal connection, taking the necessary angular engagement desired. Any hook may be readily releasedby drawing out the holding plate 23,- and as many of the hooks desired can be employed for the set of grooves of the plate foundav tion, The holding plate with itsbifurcated arms 24, 24 being rigid against vertical thrust, the hook can not be displaced vertically, and the rack and pinionbein'g of the entire width of the groove, all danger of stripping off the teeth under the strain-is obviated.

While I have illustrated my inv with reference to a fiat bed or foundation, it

will, of course, be understood that the invention is equally applicable to thespiral grooves in cylinders such as are used'in cy'linder printing presses.

-Having thus described my invention what I'claim as new and desire to secure by Letters Patent, is:

1. The combination, with a grooved foundation or bed, of a printing plate holder, in- I eluding a base adapted to slide in a groove in said bed, meanscarried by the base to hold the .base in posit-ion in the groove, and re movable therefrom to release the base from the groove, a traveling jaw coming above the foundation, asinglerack of substantial width and held in the groove and means for propelling the plate holder, said means in eluding a pinion the width of the rack and d in engagement with the rack. j

2. The combination, with a grooved foundation or bed, of a printing'plate holder, including a base adapted to slide in a groove in said bed, means carried by the base to hold'the base in position in the groove,

and removable therefrom to release the base from the groove, a traveling jaw mounted on the base coming above the foundation, a

single rack of substantial width and held,

in the groove, and means for propelling the jaw travelingwiththe base, said means including a pinion the width of the rack and-- carried by the base and in engagement with F the rack.- v

' 3. The combination, with a grooved ioundation or bed, of a printing plate holder, in-

eluding a base adapted to slide in a groove.

insaidbed,mean scarried by the base to hold? the base in position in-the groove,,,,and removable therefrom .to release the base from thegroove, a traveling aw coming above the foundation, -a single rack of-substantial part of tl plate width and a' permanent foundation, and means for propelling,

plate holder, said means includinga pimon the width of the rackand carriedbythe base and in engagement with therack. I

4? The combination, with a groovedfioux dation or bed, of a printing plate holder, includinga base adapted to slide in a groove rack of substantial Width,

in said bed, means carried by the base to hold the base in position in. the groove, and removable therefrom. to release the base from the groove, a traveling jaw mounted on the base coming above the foundation, a single and a permanent part of the plate foundation and means for propelling the jaw'traviiling with the base, said means including a pinion the width of the rack and carried by the base and in en gagement with the rack.

5. The combination, with a grooved founi dation or bed, of a printing plate holder, in-

eluding a base adapted to slide in a groove in said bed, means carried by the base to hold the base in position in the groove, and removable therefrom to release the base from the groove, a traveling jaw coming above the foundation, a single rack of sub- ,atantial width and held in the groove, and

means for propelling the plate holder, said means including a pinion the width of'the rack and carried by the base and in engage meat with the rack.

(3. The combination, with a grooved foundation or bed, of a printing plate holder, ineluding a base adapted to slide in a groove in said bed, means carried by the base to hold the base'in position in the groove, and removable therefrom to release the base from the groove, a traveling jaw mounted on the base coming above the foundation, a single rack of substantial width and held in the groove, and means for propelling the jaw traveling with the jaw, said means including a pinion the width of the rack and carried by the base and in engagement with the rack.

7. The combination, with a grooved foundation or bed, of a printing plate holder, in eluding a base adapted to slide in a'groove in said bed, a traveling jaw coming above the foundation, a single rack of substantial width, and a permanent part of the plate foundation, and means for propelling the plate holder, said means including a pinion the width of the rack and carried by the base and in engagement with the rack, and means carried by the base to hold the base in position in the groove, and removable therefrom to release the base from the groove. i

8. The combination, with a grooved foundation or bed, of a printing plate holder, including. a base adapted to slide in a groove in said bed, a traveling jaw mounted on the base coming above the foundation, a single rack of substantial width, and a permanent part of the plate foundation, and means for propelling the. jaw traveling with the jaw, said means including a pinion the width of the rack and carried by the base and in engagement with the rack, and means carried by the base to hold the base in osition in the groove, and removable there rom to release the base from the groove.

9. A register hook device comprising, a block having a transverse aperture therethrough opening through the bottom of the block, and a central recess in the upper surface of the block opening into sald transverse aperture," a pinion substantially the width of the block mounted in said'tra'nsverse aperture, with a screw mounted in the central recess engaging said pinion and a clamping jaw mounted on the block and exmeans carried by said block to form s'ide ex tensions beyond the side walls of the block to hold the block in position and removable therefrom to release the block.

10. A register hook device comprising a block having a transverse aperture therethrough opening through the bottom of the block, and a central recess in the upper surface of the block opening intosaid transverse aperture, a pinion substantially the width of the block mounted in said transverse aperture, with a screw mounted in the central recess engaging said pinion and a clamping jaw mounted on said block, the block having grooved sides, with a separable retaining plate held in said grooves with its edges extending bevond the side walls of the block to hold the block in position and removable therefrom to release the blogk 11. A register hook device comprising a block having a transverse aperture therethrough opening through the bottom of the" block, and a central recess in the upper surface of the block opening into said trans verse aperture, a pinion substantially the width of the block mounted in said transverse aperture, with an annular groove in said pinion and a plate carried by the block engaging said groove to hold. the pinion in place, with a screw mounted in the central recess engaging said pinion, and a clamping jaw mounted on the block and extending above the surface thereof.

FREDERICK H. BEROLD, JR. \Vitnesses BESSIE A. BEALL, R. P. HARGITT. 

